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  • News

    Tool sharpens focus on Stone Age networking in the Middle East

    A stone tool found in Syria more than 80 years ago has sharpened scientists’ understanding of Stone Age networking.

    Small enough to fit in the palm of an adult’s hand, this chipped piece of obsidian dates to between 41,000 and 32,000 years ago, say archaeologists Ellery Frahm and Thomas Hauck. It was fashioned out of volcanic rock from outcrops in central Turkey, a minimum of 700...

    05/23/2017 - 07:00 Archaeology, Anthropology, Human Evolution
  • News

    European fossils may belong to earliest known hominid

    Europe, not Africa, might have spawned the first members of the human evolutionary family around 7 million years ago, researchers say.

    Tooth characteristics of a chimpanzee-sized primate that once lived in southeastern European suggest that the primate, known as Graecopithecus, may have been a hominid, not an ape as many researchers assume. One tooth in particular, the second lower...

    05/22/2017 - 14:00 Anthropology, Human Evolution
  • News

    Even short-term opioid use can set people up for addiction risks

    Even though a sprained ankle rarely needs an opioid, a new study of emergency room patients found that about 7 percent of patients got sent home with a prescription for the potentially addictive painkiller anyway. And the more pills prescribed, the greater the chance the prescription would be refilled, raising concerns about continued use.

    The research adds to evidence that it’s hard for...

    05/19/2017 - 09:00 Health, Science & Society
  • News

    Orangutans take motherhood to extremes, nursing young for more than eight years

    View the video

    The supermoms of the mammal world are big, shy redheads. Studying growth layers in orangutan teeth shows that mothers can nurse their youngsters for eight-plus years, a record for wild mammals.  

    Teeth from a museum specimen of a young Bornean orangutan (Pongo pygmaeus) don’t show signs of weaning until 8.1 years of age. And a Sumatran orangutan (P. abelii) was still...

    05/17/2017 - 14:46 Animals, Anthropology
  • Feature

    Chaco Canyon’s ancient civilization continues to puzzle

    Chaco Canyon is a land of extremes. Summer heat scorches the desert canyon, which is sandwiched between sandstone cliffs nearly two kilometers above sea level in New Mexico’s northwestern corner. Bitter cold sweeps in for winter. Temperatures can swing as many as 28 degrees Celsius during the course of a day. Through it all, Chaco Canyon maintains a desolate beauty and a craggy pride as home...

    05/17/2017 - 07:00 Archaeology, Anthropology
  • Feature

    Jumping genes play a big role in what makes us human

    Face-to-face, a human and a chimpanzee are easy to tell apart. The two species share a common primate ancestor, but over millions of years, their characteristics have morphed into easily distinguishable features. Chimps developed prominent brow ridges, flat noses, low-crowned heads and protruding muzzles. Human noses jut from relatively flat faces under high-domed crowns.

    Those facial...

    05/16/2017 - 07:00 Genetics, Human Evolution, Molecular Evolution
  • News

    Where you live can affect your blood pressure, study suggests

    For black adults, moving out of a racially segregated neighborhood is linked to a drop in blood pressure, according to a new study. The finding adds to growing evidence of an association between a lack of resources in many predominately black neighborhoods and adverse health conditions among their residents, such as diabetes and obesity.

    Systolic blood pressure — the pressure in blood...

    05/15/2017 - 19:21 Biomedicine, Health, Science & Society
  • Context

    The first Cassini to explore Saturn was a person

    As the Cassini spacecraft plunges toward its death on Saturn, the world’s knowledge of the famous ringed planet continues to accumulate. Thanks to years of observations by the versatile probe, astronomers now know Saturn as intimately as macaroni knows cheese. But still hardly anyone outside the world of astronomy knows anything about Cassini — and I don’t mean the spacecraft, but the guy it...

    05/15/2017 - 07:00 History of Science, Astronomy
  • Exhibit

    New museum exhibit explores science of racism

    In a famous series of experiments conducted in the 1970s, social psychologist Henri Tajfel asked how little it would take to persuade one group of people to discriminate against another. The answer was almost nothing. Having assigned boys to two groups based largely on random criteria, he asked them to play a game. Each boy had to decide how many pennies to give to members of his own group and...

    05/14/2017 - 08:00 Science & Society, Anthropology, Psychology
  • News

    Homo naledi may have lived at around same time as early humans

    Fossils of a humanlike species with some puzzlingly ancient skeletal quirks are surprisingly young, its discoverers say. It now appears that this hominid, dubbed Homo naledi, inhabited southern Africa close to 300,000 years ago, around the dawn of Homo sapiens.

    H. naledi achieved worldwide acclaim in 2015 as a possibly pivotal player in the evolution of the human genus, Homo. Retrieved...

    05/09/2017 - 04:00 Anthropology, Human Evolution